Adjustable lamp



Aug. 30, 1938. 4 R w JOHNSQN 2,128,461

ADJUSTABLE LAMP Filed June 15, 1956 W fl W a INVENTOR.

Patented Aug. 30, 1938 UNITED STATES PATENT OFFICE ADJUSTABLE LAMPApplication June 15,

2 Claims.

The lamp herein set forth is designed primarily for automobile use,although it is equally adaptable to other uses wherein criticaldirectioning or aiming of the light beam is essential to the 5 properfunctioning of the lamp for the purposes for which it may be designed.

An object of my invention is to produce a lamp which is novel in itsstructural features wherein aiming is accomplished within itself in anim- 10 proved manner for accurate adjustment, easy adjustment, positivelocking in adjusted positions, and without changing the appearance ofthe lamp within itself or the relationship of the lamp relatively to thevehicle or other mounting machine 15 or agency with which the lamp is tobe used.

In automobile use the lamp is especially adaptable in that presentdesign tendencies dictate built-in structural relationship of thenonadjustable portions of the lamp. Such a condition prev 20 cludes thenecessary aiming of the lamp to direct its projected light beamcorrectly to meet the requirements of lighting regulations, unless somesuitable provisions be made to obtain such adjustments, preferablywithin the lamp itself.

The single figure of drawing illustrates fragmentally and in section anexample of lamp construction embodying my invention.

A lamp to embody my invention may consist of a basic inclosing elementsuch as a shell I which 30 is of the conventional shape or which may bea portion of a vehicle body, radiator, fender. nacelle, fuselage, orwing. As a clamping element which may partake of the shape of theelement I, a

ring 2 may be provided at the forward edge, which ring may be of solidor sheet metal formation and which may be a part of the element I, orseparate therefrom as shown. If separately provided, suitable attachingmeans such as screws 3, may

be provided around the inside of the element I.

The forward portion of the ring 2 may be shaped internally, as at l, tofit the outer surface of an 'open ended body 5 which is sphericallyformed, at least adjacent to its open end, which will operate againstthe surface 4 as a ball in a 45 socket. The front of the body has a rim8 which may retain a lens 1', somewhat as shown, the interior of thebody 5 containing the usual reflector 8 and lamp bulb 9. Details of themounting of these elements I, l and I are not shown or 50 describedsince they do not constitute a part of this invention.

1936, Serial No. 85,195

In order that the ball-like lamp structure may be held in place andlocked in adjusted positions within the ring 2, against the socketsurface 4 thereof, I have provided a body-hugging strap or cup-likeclamping member ill, preferably fastened at its upper end II and havingtightening connection at its lower'end i2 with a screw l3 or othertightening device which may be accessible exteriorly, whereby adjustedpositions of the balllike body 5 is assured.

Obviously, the embodiment I have illustrated and described is butexemplary of the invention I have made and which is expressed in thefollowing claims.

Having thus described my invention, I claim: 1. An adjustable lampstructure consisting of a lamp unit having an open-ended body, said bodyhaving a substantially spherically shaped surface, a substantiallyringlike socket occupying the spherical body in a planenormal to thebody axis, a strap fixed at one end to the socket, extending in a planenormal to the socket and in engagement with the lamp surfacesubstantially from said fixed end throughout thelength of said strap,and means attaching the opposite end of the strap to the socket at apoint opposite to the fixed attachment thereof with the socket, saidmeans adapting said opposite end to adjustment whereby the strap may betightened to grip the body and clamp it within the socket to maintainadjusted positions of the body therein.

2. An adjustable lamp structure consisting of a movable lamp unit havingan open-ended body, said body having a substantially spherically shapedsurface, and a fixed harness consisting of two elements, one elementsubstantially embracing said body in a zone about the open'end of thebody, and the other element embracing said body in a zone rightangularly disposed to said first mentioned zone, the latter harnesselement functioning in its gripping of the second mentioned zone tocause said first mentioned harness element to grip the body in saidfirst mentioned zone, and jointly therewith frictionally to maintainadjusted positions of the'body within the socket, and means at the endsof the latter mentioned harness element connecting and adjusting itrelatively to the first mentioned harness element to accomplish saidstatedfunctions.

nor w. JOHNSON.

